Support uninstalling ARC app from Chrome launcher

chrome/browser/ui/app_list/arc/arc_app_list_prefs.h

Index: chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
diff --git a/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h b/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
index 9db76e3615559721d79a8035fb6b2e1a05fa7a9a..f05b796cfd454c57c5c06e85614e69ee08c8c3aa 100644
--- a/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
+++ b/chrome/browser/ui/app_list/arc/arc_app_list_prefs.h
@@ -50,13 +50,15 @@ class ArcAppListPrefs : public KeyedService,
             const std::string& package_name,
             const std::string& activity,
             const base::Time& last_launch_time,
-            bool ready);
+            bool ready,
+            bool sticky);
 
     std::string name;
     std::string package_name;
     std::string activity;
     base::Time last_launch_time;
     bool ready;
+    bool sticky;

[khmel, 2016/03/08 00:09:54]

nit: I would put sticky above ready. Ready is dynamic property and it is not
expected to be changed.

[victorhsieh0, 2016/03/08 00:33:07]

Done.

   };
 
   class Observer {